chemistry annual papers of gujranwala boards

Periodic Table & Periodicity of Properties|CH#3 chemistry|tutoronlines

Chapter # 3 Periodic Table and Periodicity of Properties Table of contact: Sr. no Topic name 1 Periodic Table 2 Mendleev’s periodic 3 Group 4 Newland’s Law 5 Electron Configuration 6 Periodic Law 7 Periodicity of Properties 8 Atomic Radius 9 Electron Affinity 10 Ionization Energy 11 Shielding Effect 12 Electronegativity Give the short answer …

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STRUCTURE OF ATOMS|CH#2 chemistry 9th|tutoronlines

Chapter No 2 STRUCTURE OF ATOMS Give short answer to the following Questions Q.No.1. Write down two properties of cathode rays? Ans. Cathode ray are negatively charged. They travel in straight lines perpendicular to the cathode surface. Q.No.2. How does electron differ from neutron? Ans. Electron has negative charge, while neutron has no charge. Electron …

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